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OSPF Questions CCNA 200-120

in New CCNA 200-120 on May 22, 2014

Which statements describe the routing protocol OSPF? (Choose three)
A. It supports VLSM.
B. It is used to route between autonomous systems.
C. It confines network instability to one area of the network.
D. It increases routing overhead on the network.
E. It allows extensive control of routing updates
F. It is simpler to configure than RIPv2.

Correct Answer: ACE

A network administrator is trying to add a new router into an established OSPF network. The networks attached
to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the
partial configuration shown below, what configuration error is causing this problem?
Router(config)# router ospf 1
Router(config-router)# network area 0

A. The process id is configured improperly.
B. The OSPF area is configured improperly.
C. The network wildcard mask is configured improperly.
D. The network number is configured improperly.
E. The AS is configured improperly.
F. The network subnet mask is configured improperly.

Correct Answer: C

What is the default maximum number of equal-cost paths that can be placed into the routing of a Cisco OSPF
A. 16
B. 2
C. unlimited
D. 4

Correct Answer: D

Which two statements describe the process identifier that is used in the command to configure OSPF on a
router? (Choose two)
Router(config)# router ospf 1
A. All OSPF routers in an area must have the same process ID.
B. Only one process number can be used on the same router.
C. Different process identifiers can be used to run multiple OSPF processes
D. The process number can be any number from 1 to 65,535.
E. Hello packets are sent to each neighbor to determine the processor identifier.

Correct Answer: CD

Why do large OSPF networks use a hierarchical design? (Choose three)
A. to confine network instability to single areas of the network.
B. to reduce the complexity of router configuration
C. to speed up convergence
D. to lower costs by replacing routers with distribution layer switches
E. to decrease latency by increasing bandwidth
F. to reduce routing overhead

Correct Answer: ACF

Which commands are required to properly configure a router to run OSPF and to add network
to OSPF area 0? (choose two)
A. Router(config)#router ospf 1
B. Router(config)#router ospf 0
C. Router(config)#router ospf area 0
D. Router(config-router)#network area 0
E. Router(config-router)#network 0
F. Router(config-router)#network area 0

Correct Answer: AD

What is the default administrative distance of OSPF?
A. 120
B. 100
C. 90
D. 110

Correct Answer: D

Which parameter or parameters are used to calculate OSPF cost in Cisco routers?
A. Bandwidth, Delay and MTU
B. Bandwidth
C. Bandwidth and MTU
D. Bandwidth, MTU, Reliability, Delay and Load

Correct Answer: B

What information does a router running a link-state protocol use to build and maintain its topological database?
(Choose two)
A. hello packets
B. SAP messages sent by other routers
C. LSAs from other routers
D. beacons received on point-to-point links
E. routing tables received from other link-state routers
F. TTL packets from designated routers

Correct Answer: AC

Which command is used to display the collection of OSPF link states?
A. show ip ospf link-state
B. show ip ospf lsa database
C. show ip ospf neighbors
D. show ip ospf database

Correct Answer: D

Which is true about OSPF router-id? (Choose two)
A. It is used for type 1 router LSA
B. Highest IP address of the loopback is used
C. router-id needs to be matched on ospf neighbors
D. router-id is 16 bit

Correct Answer: AB

A network administrator is troubleshooting an EIGRP problem on a router and needs to confirm the IP
addresses of the devices with which the router has established adjacency. The retransmit interval and the
queue counts for the adjacent routers also need to be checked. What command will display the required
A. Router# show ip eigrp adjacency
B. Router# show ip eigrp topology
C. Router#show ip eigrp interfaces
D. Router#show ip eigrp neighbors

Correct Answer: D


Categories: New CCNA 200-120


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